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CVE-2026-13311 shell-quote parse() is quadratic in token count, enabling denial of service

🗓️ 25 Jun 2026 04:48:36Reported by harboristType 
cvelist
 cvelist
🔗 www.cve.org👁 62 Views

Shell-quote parse() is quadratic and can deny service by blocking the event loop; fixed in version 1.8.5.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
attackerkb
ATTACKERKB
CVE-2026-13311
25 Jun 202604:48
attackerkb
ibm
IBM Security Bulletins
Security Bulletin: Multiple vulnerabilities in IBM Software Support App
9 Jul 202621:50
ibm
cgr
Chainguard
CVE-2026-13311 vulnerabilities
28 Jul 202620:23
cgr
circl
Circl
CVE-2026-13311
25 Jun 202606:00
circl
cve
CVE
CVE-2026-13311
25 Jun 202604:48
cve
debiancve
Debian CVE
CVE-2026-13311
25 Jun 202604:48
debiancve
euvd
EUVD
EUVD-2026-39180
20 Jul 202621:49
euvd
github
Github Security Blog
shell-quote: Quadratic-complexity Denial of Service in `parse()` (CWE-407)
20 Jul 202621:49
github
nvd
NVD
CVE-2026-13311
25 Jun 202605:16
nvd
nessus
Tenable Nessus
openSUSE 16 Security Update : python-pytest-html (openSUSE-SU-2026:21176-1)
2 Jul 202600:00
nessus
Rows per page
[
  {
    "vendor": "ljharb",
    "product": "shell-quote",
    "collectionURL": "https://www.npmjs.com/package",
    "packageName": "shell-quote",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThanOrEqual": "1.8.4",
        "versionType": "semver"
      }
    ],
    "defaultStatus": "unaffected"
  }
]

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25 Jun 2026 04:48Current
CVSS 3.17.5
CVSS 48.7
EPSS0.0036
62